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---
- name: check for nodes to be removed
hosts: _kubernetes_primary_controlplane_node_
tasks:
- name: fetch list of current nodes
command: kubectl --kubeconfig /etc/kubernetes/admin.conf get nodes -o jsonpath='{range .items[*]}{.metadata.name}{":"}{.metadata.labels.ansible\.spreadsapce\.org/inventory_hostname}{"\n"}{end}'
changed_when: False
check_mode: no
register: kubectl_node_list_yaml
- name: generate group of nodes to be removed
loop: "{{ kubectl_node_list_yaml.stdout_lines | map('split', ':', 1) | rejectattr('1', 'in', groups['_kubernetes_nodes_']) }}"
loop_control:
label: "{{ item[1] }} ({{ item[0] }})"
add_host:
name: "{{ item[1] }}"
inventory_dir: "{{ hostvars[item[1]].inventory_dir }}"
group: _kubernetes_nodes_prune_
kubernetes_node_name: "{{ item[0] }}"
changed_when: False
- name: get list of bootstrap-tokens
command: "kubeadm token list --show-managed-fields -o jsonpath='{.token};'"
changed_when: False
check_mode: no
register: kubeadm_token_list_json
- name: delete all bootstrap tokens
loop: "{{ kubeadm_token_list_json.stdout | split(';') | reject('==', '') }}"
command: "kubeadm token delete {{ item }}"
- name: prune superflous nodes from cluster
hosts: _kubernetes_nodes_
roles:
- role: kubernetes/kubeadm/prune
- name: wipe superflous nodes
hosts: _kubernetes_nodes_prune_
roles:
- role: kubernetes/kubeadm/reset
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